• CUMMINS GENUINE ROCKER BOX GASKET 3963379 | 2003-2024 5.9L/6.7L CUMMINS
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Cummins

CUMMINS GENUINE ROCKER BOX GASKET 3963379 | 2003-2024 5.9L/6.7L CUMMINS

CUMMINS GENUINE ROCKER BOX GASKET 3963379 | 2003-2024 5.9L/6.7L CUMMINS

3963379

$51.10 USD

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While many of our products are stocked in our warehouse, inventory levels can change quickly. If you need to confirm availability before placing your order, please call or text 970-778-0792.

Maintain a proper seal between the rocker box and cylinder head on your 5.9L or 6.7L Cummins with the Cummins 3963379 Genuine Rocker Box Gasket. This genuine OEM replacement gasket installs underneath the rocker box and is designed to help prevent engine oil leaks at the rocker box-to-cylinder head sealing surface.

Manufactured to Cummins specifications, this gasket provides the correct dimensions and sealing characteristics for a factory-style fit. It is an ideal replacement when removing the rocker box for cylinder head, valvetrain, injector, or other upper-engine service.

Features:

  • Genuine Cummins OEM replacement gasket
  • Seals the rocker box to the cylinder head
  • Helps prevent engine oil leaks
  • Direct-fit replacement
  • Maintains factory-style fit and function
  • Ideal for rocker box and upper-engine service

Fitment:

  • 5.9L Cummins diesel applications
  • 6.7L Cummins diesel applications
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